What is the effect of increasing the wavelength of light on the fringe separatio
Practice Questions
Q1
What is the effect of increasing the wavelength of light on the fringe separation in a double-slit experiment?
Increases
Decreases
No effect
Depends on slit separation
Questions & Step-by-Step Solutions
What is the effect of increasing the wavelength of light on the fringe separation in a double-slit experiment?
Step 1: Understand the double-slit experiment. It involves shining light through two closely spaced slits to create an interference pattern on a screen.
Step 2: Know the formula for fringe separation (β), which is β = λD/d. Here, λ is the wavelength of light, D is the distance from the slits to the screen, and d is the distance between the slits.
Step 3: Identify what happens when the wavelength (λ) increases. According to the formula, if λ increases, then β (fringe separation) will also increase, assuming D and d remain constant.
Step 4: Conclude that increasing the wavelength of light results in wider spacing between the bright and dark fringes on the screen.
